Table 1.
The six epidemics and their pre-existing CD4 and CD8 T cell responses in our study
| Influenza pandemic/epidemics | The CD4/CD8 T cell response | Identification of infection in sera | ||||
|---|---|---|---|---|---|---|
| Time for measurement | sH1N1 strain | pH1N1 strain | H3N2 strain | Rounds for measurement | Influenza strain | |
| 1: 2009 autumn, pH1N1 (pandemic) | 2009 spring (R1) | A/Brisbane/59/2007 | NA | A/Perth/16/2009 | R1+R2+R3 | A/California/7/2009 |
| 2: 2010 autumn, H3N2 (epidemic) | 2010 spring (R3) | A/Brisbane/59/2007 | A/California/7/2009 | A/Perth/16/2009 | R3+R4+R5 | A/Perth/16/2009 |
| 3: 2011 spring, pH1N1 (epidemic) | 2010 spring (R3) | A/Brisbane/59/2007 | A/California/7/2009 | A/Perth/16/2009 | R4+R5+R6 | A/California/7/2009 |
| 4: 2012 spring, H3N2 (epidemic) | 2011 spring (R5) | A/Brisbane/59/2007 | A/California/7/2009 | A/Perth/16/2009 | R6+R7+R8 | A/Victoria/361/2011 |
| 5: 2013 spring, pH1N1 (epidemic) | 2012 spring (R7) | A/Brisbane/59/2007 | A/California/7/2009 | A/Victoria/361/2011- | R8+R9+R10 | A/California/7/2009 |
| 6: 2013 autumn, H3N2 (epidemic) | 2012 spring (R7) | A/Brisbane/59/2007 | A/California/7/2009 | A/Victoria/361/2011 | R8+R9+R10 | A/Victoria/361/2011 |